--[[
	管理所有子游戏的版本信息，更新状态，及更新子游戏
	
	负责下载所有子游戏的游戏图标，并将图标时间记录下来

	从SubGameVersionManager获取子游戏最新的版本信息
	从本地文件中获取子游戏当前的版本信息
	判断子游戏是否需要更新
	提供子游戏更新的接口
	
	子游戏列表及当前版本号存本地文件,
	subGameList = 
	{
		[gameId] = "1022",
		[gameId] = "1022",
	}
--]]

local SubGameVersionManager = class("SubGameVersionManager")

function SubGameVersionManager:ctor()
	cc.GameObject.extend(self)
    self:addComponent(require("luaScript.cc.components.behavior.EventProtocol"):new()):exportMethods()
	
	-- 是否测试下载
	self.isTestUpdate = false

	-- 子游戏列表
	self.subGameList = {}
	
	-- 本地记录的文件信息
	self.GameVersionsKey = "GameVersions";
	self.GameVersions = {}	
	-- self.GameVersions[3] = 10000;
	-- self.GameVersions[6] = 1000;

	--基础包
	--self.GameVersions[1001] = -1;
	--self.GameVersions[1002] = -1;
	--self.GameVersions[1003] = -1;
		
	-- 从本地读取已经安装的子游戏列表
	-- 以及每个子游戏的当前版本号
	self:loadVersionsFromFile()	

	--处理一下基础包的版本号
	self.GameVersions[1001] = self.GameVersions[1001]==1000 and -1 or self.GameVersions[1001]
	self.GameVersions[1002] = self.GameVersions[1002]==1000 and -1 or self.GameVersions[1002]
	self.GameVersions[1003] = self.GameVersions[1003]==1000 and -1 or self.GameVersions[1003]
	-- self.GameVersions[3] = self.GameVersions[3]==10000 and -1 or self.GameVersions[3]
	
	-- 子游戏下载器
	self.updaterList = {}
	--排序
	self.info = {};
	-- self:loadFromFile();
end

-- 获取子游戏的版本
-- 如果指定的游戏没有安装，则返回-1
function SubGameVersionManager:getSubGameVersionNum(gameId)
	gameId = tonumber(gameId)
	if self.GameVersions[gameId] then
		return self.GameVersions[gameId]
	else
		return -1
	end
end

-- 从本地读取游戏版本信息
function SubGameVersionManager:loadVersionsFromFile()
	local locString = loadUserInfo(self.GameVersionsKey)
	if not locString or locString == "" then
		return
	end
	logD("SubGameVersionManager:loadVersionsFromFile() locString = ", locString)
	local locData = json.decode(locString)
	if locData then
		for k,v in pairs(locData) do
			self.GameVersions[tonumber(k)] = tonumber(v)
		end
	else
		logD("SubGameVersionManager:loadVersionsFromFile() locString:"..locString)
	end
end

-- 将游戏版本信息写入到本地
function SubGameVersionManager:saveVersionsToFile()
	local locString = json.encode(self.GameVersions)
	logD("SubGameVersionManager:saveVersionsToFile() locString = ", locString)
	saveUserInfo(self.GameVersionsKey, locString)
end

-- 保存子游戏的资源版本号
function SubGameVersionManager:saveSubGameVersion(gameId, newVersion)
	if not self.GameVersions then
		self.GameVersions = {}
	end
	self.GameVersions[tonumber(gameId)] = newVersion
	self:saveVersionsToFile()
end

-- 子游戏是否已安装
function SubGameVersionManager:isInstaller(gameId)
	gameId = tonumber(gameId)
	
	-- WIN32且未开启测试，则默认已安装
	if isWin32Platform() and self.isTestUpdate == false then
		return true
	end	
	
	if (gameId and self.GameVersions and self.GameVersions[gameId]) then
		return true
	else
		return false
	end
end

-- 子游戏是否需要更新
function SubGameVersionManager:isNeedUpdate(gameId)
	logD("SubGameVersionManager:isNeedUpdate()", gameId)
	
	-- WIN32且未开启测试，则默认不需要更新
	if isWin32Platform() and self.isTestUpdate == false then
		return false
	end
	
	-- 检查该游戏的基础包
	local subGameConfig = getSubGameConfig(gameId)
	if subGameConfig and subGameConfig.fremworkId then
		if self:isNeedUpdate(subGameConfig.fremworkId) then
			return true
		end		
	end	

	local verLocal = self:getSubGameVersionNum(gameId)
	local verServer = app.serverConfigs:getSubGameVersionNum(gameId)
	logD(string.format("SubGameVersionManager:isNeedUpdate() gameId = %s, verLocal = %s, verServer = %s", gameId, verLocal, verServer))
	
	-- 如果本地没有安装，肯定是需要更新的
	if tonumber(verLocal) == -1 then
		logD(string.format("SubGameVersionManager:isNeedUpdate() gameId = %s, verLocal = %s", gameId, verLocal))
		return true
	end
			
	-- 无需更新的情况
	if tonumber(verServer) == 0 or tonumber(verLocal) == tonumber(verServer) then
		logD("SubGameVersionManager:isNeedUpdate() 无需更新")
		return false
	end
	
	-- 正常更新
	if tonumber(verLocal) < tonumber(verServer) then
		logD("SubGameVersionManager:isNeedUpdate() 正常更新")
		return true
	end
	
	-- 版本回退
	if tonumber(verLocal) > tonumber(verServer) then
		logD("SubGameVersionManager:isNeedUpdate() 版本回退")
		local writablePath = cc.FileUtils:getInstance():getWritablePath()
		local rootName = nil
		local subGameConfig = getSubGameConfig(gameId)
		if subGameConfig then
			rootName = subGameConfig.rootName
		elseif FRAMEWORK_DIR[gameId] then
			rootName = FRAMEWORK_DIR[gameId]
		end
		logD("SubGameVersionManager:isNeedUpdate() rootName = ", tostring(rootName))
		
		if rootName then
			local subGameResPath = writablePath .. RomSetting.Platform .. "/" .. rootName .. "/"
			logD("SubGameVersionManager:isNeedUpdate() subGameResPath = ", subGameResPath)
			
			cc.FileUtils:getInstance():removeDirectory(subGameResPath)
			cc.FileUtils:getInstance():purgeCachedEntries()
			
			self:saveSubGameVersion(gameId, nil)
		end
		return true
	end
	
	-- 能走到这里来肯定是有问题的
	error("SubGameVersionManager:isNeedUpdate()")
	return false
end

-- 判断某个游戏是否正在更新中
function SubGameVersionManager:isUpdating(gameId)
	return self.updaterList[tonumber(gameId)] ~= nil
end
---
-- 获取更新任务，包含子游戏及子游戏依赖的框架，可能有多重嵌套依赖
-- @param {number} gameId 子游戏id
-- @return {table} 下载任务 {{gameId = 123, isUpdated = false}, {...}}
--
-- 
function SubGameVersionManager:getSubGameUpdateTasks (gameId) 
	if not gameId then 
		logE("SubGameVersionManager:getSubGameUpdateTasks", "参数gameId不能为空！")
		return 0
	end

	local gameVersionInfo = app.serverConfigs:getSubGameVersionInfo(gameId)
	if not gameVersionInfo then
		-- 子游戏配置信息不存在，返回0，不下载
		return 0
	end

	local updateTasks = {
		{gameId = gameId, isUpdated = false},
	}

	local subGameConfig=getSubGameConfig(gameId)
	while (subGameConfig and subGameConfig.fremworkId and subGameConfig.fremworkId > 0) do 
		local isNeedUpdate = self:isNeedUpdate(subGameConfig.fremworkId)
		if isNeedUpdate then 
			table.insert(updateTasks, 1, {gameId = subGameConfig.fremworkId, isUpdated = false})
		end
		subGameConfig = getSubGameConfig(subGameConfig.fremworkId)
	end

	return updateTasks;
end

---
-- 更新子游戏
-- @param gameId 子游戏id
-- @param percentCallback 百分比回调函数
-- @param finishCallBack 下载完成回调函数
-- @return 
-- 
function SubGameVersionManager:updateSubGame(gameId, percentCallback, finishCallBack)
	logD("SubGameVersionManager:updateSubGame()", gameId)
	local gameVersionInfo = app.serverConfigs:getSubGameVersionInfo(gameId)
	if not gameVersionInfo then
		-- 如果游戏配置不存在，直接返回
		logD("游戏配置不存在，不进行更新操作！")
		if finishCallBack then
			finishCallBack();
		end
		return 
	end

	self.subGameUpdateTasks = self:getSubGameUpdateTasks(gameId) -- 需要更新的任务
	self.subGameTaskCount = table.nums(self.subGameUpdateTasks) -- 需要更新的任务总数
	self.curSubGameUpdateIndex = 1 -- 当前第几个任务

	if self.subGameTaskCount == 0 then 
		logD("SubGameVersionManager:updateSubGame", "没有可更新的子游戏")
		return 
	end

	-- 开始执行子游戏更新
	logD("SubGameVersionManager:updateSubGame", "开始执行子游戏更新", table.tostring(self.subGameUpdateTasks))
	self:startUpdateSubGame(percentCallback, finishCallBack)
end
---
-- 开始执行子游戏更新
-- @param percentCallback 百分比回调函数
-- @param finishCallBack 下载完成回调函数
-- @return 
-- 
function SubGameVersionManager:startUpdateSubGame(percentCallback, finishCallBack)
	logD("SubGameVersionManager:startUpdateSubGame()")

	if table.nums(self.subGameUpdateTasks) == 0 then 
		logD("SubGameVersionManager:startUpdateSubGame", "所有子游戏下载完成！")
		-- 所有任务下载完成，强制显示100%
		if percentCallback then 
			percentCallback(100)
		end
		-- 所有任务下载完成，执行下载完成回调
		if finishCallBack then 
			finishCallBack()
		end
		return 
	end

	local task = table.remove(self.subGameUpdateTasks, 1)
	logD("SubGameVersionManager:startUpdateSubGame", "开始下载子游戏，gameId：", task.gameId)
	if self:isNeedUpdate(task.gameId) then 
		self:updateGame(task.gameId, function (num) 
			-- 更新下载进度，多个任务下载时，根据当前任务索引，加上之前的下载进度
			percentCallback((self.curSubGameUpdateIndex - 1) / self.subGameTaskCount * 100 + num / self.subGameTaskCount)
		end, function () 
			self.curSubGameUpdateIndex = self.curSubGameUpdateIndex + 1
			self:startUpdateSubGame(percentCallback, finishCallBack)
		end)
	else 
		self:startUpdateSubGame(percentCallback, finishCallBack);
	end
end

function SubGameVersionManager:updateGame(gameId, percentCallback, finishCallBack)
	logD("SubGameVersionManager:updateGame", "curSubGameUpdateIndex", self.curSubGameUpdateIndex)
	logD("SubGameVersionManager:updateGame()", gameId)
	local gameVersionInfo = app.serverConfigs:getSubGameVersionInfo(gameId)

	gameVersionInfo.gameId = gameId
	
	--框架ID添加
	if gameId > 1000 then
		gameVersionInfo.show = false
	end
	
	dump(gameVersionInfo)
	local function onFinishCallback(newVersion)
		logD("SubGameVersionManager:updateSubGame() onFinishCallback()", gameId, newVersion)
		-- 修改数据
		self:saveSubGameVersion(gameId, newVersion)
		--上报游戏版本
		app.php:requestReportGameVer(gameId, newVersion)
		-- 删除下载器
		self.updaterList[gameId] = nil
				
		-- 触发回调
		if finishCallBack then
			logD("SubGameVersionManager:updateSubGame() onFinishCallback() call finishCallBack")
			finishCallBack(newVersion)
		else
			logD("SubGameVersionManager:updateSubGame() onFinishCallback() finishCallBack is nil")
		end
	end
	local updater = import("luaScript.SubGame.SubGameUpdater"):new(gameVersionInfo, percentCallback, onFinishCallback)
	if updater then
		-- 保存下载器
		self.updaterList[gameId] = updater
				
		-- 开始下载
		updater:start();			
	end
end




-- 更换回调函数
function SubGameVersionManager:updateCallback(gameId, percentCallback, finishCallBack)
	local updater = self.updaterList[gameId]
	if updater then
		local function onFinishCallback(newVersion)
			
			logD("SubGameVersionManager:updateCallback() onFinishCallback()", gameId, newVersion)
			
			-- 修改数据
			self:saveSubGameVersion(gameId, newVersion)
			
			-- 删除下载器
			self.updaterList[gameId] = nil
			
			-- 触发回调
			if finishCallBack then
				logD("SubGameVersionManager:updateCallback() onFinishCallback() call finishCallBack")
				finishCallBack(newVersion)
			else
				logD("SubGameVersionManager:updateCallback() onFinishCallback() finishCallBack is nil")
			end
		end
		updater:updateCallback(percentCallback, onFinishCallback)
	end
	
end

-- 获取已安装的游戏列表
function SubGameVersionManager:getGameListInstalled()
	local listIds
	-- 这里不能遍历服务器配置中的列表
	-- 因为如果某个子游戏隐藏了，机器人开的房间要能进去
	for k,v in pairs(GAME_IDS) do
		if self:isInstaller(v) then
			if not listIds then
				listIds = tostring(v)
			else
				listIds = listIds .. "," .. tostring(v)
			end
		end
	end
	return listIds;
end

-- local fileName = "gameUserTime.data"

-- function SubGameVersionManager:loadFromFile()
-- 	local jsonString = loadStringFromFile(fileName)
-- 	if jsonString then
-- 		self.info = json.decode(jsonString) or {}
-- 	end
-- end

-- -- 保存信息到本地文件
-- function SubGameVersionManager:saveToFile(gameId)
-- 	local time = os.time()
-- 	self.info[tostring(gameId)] = time
-- 	local jsonString = json.encode(self.info)
-- 	saveStringToFile(jsonString, fileName)
-- end


function SubGameVersionManager:clearGame(gameId, endCallback)
	local rootName = nil
	local gameConfig = getSubGameConfig(gameId)
	if gameConfig and gameConfig.rootName then
		rootName = gameConfig.rootName
	end
	if FRAMEWORK_DIR[gameId] then
		rootName = FRAMEWORK_DIR[gameId]
	end
	if rootName then
		local writablePath = cc.FileUtils:getInstance():getWritablePath()
		if gameConfig and gameConfig.resDirs then
			for k,v in pairs(gameConfig.resDirs) do
				local dir = writablePath..app.config.RomSetting.Platform.."/"..v.."/";
				logD("SubGameVersionManager:clearGame() removeDirectory, dir = ", dir);
				cc.FileUtils:getInstance():removeDirectory(dir)
			end
		else
			local dir = writablePath..app.config.RomSetting.Platform.."/"..rootName.."/";
			logD("SubGameVersionManager:clearGame() removeDirectory, dir = ", dir);
			cc.FileUtils:getInstance():removeDirectory(dir)
		end
		self.GameVersions[gameId]=nil
		self:saveVersionsToFile()
	end
	app.serverConfigs:requestGetSubGameVersions(endCallback)
end

function SubGameVersionManager:checkSubGameFiles(gameId)
	logD("SubGameVersionManager:checkSubGameFiles() gameId = " .. gameId);
	if isWin32Platform() then
		return true
	end

	local rootName = nil
	local gameConfig = getSubGameConfig(gameId)
	if gameConfig and gameConfig.rootName then
		rootName = gameConfig.rootName
	end
	if FRAMEWORK_DIR[gameId] then
		rootName = FRAMEWORK_DIR[gameId]
	end	
	
	if not rootName then
		return true, gameId, {}
	end
	
	local writablePath = cc.FileUtils:getInstance():getWritablePath()
	local filesfile = app.config.RomSetting.Platform .. "/" .. rootName .. "/" .. "files.txt";
	logD("SubGameVersionManager:checkSubGameFiles() filesfile = ", filesfile);
	
	local result, missingfiles = checkFilesExist(filesfile)
	
	return result, gameId, missingfiles;		
end

-- 检查子游戏文件的完整性
function SubGameVersionManager:checkGameFiles(gameId)
	logD("SubGameVersionManager:checkGameFiles() gameId = ", gameId);
	local result, subGameId, missingfiles = self:checkSubGameFiles(gameId)
	if not result then
		return result, subGameId, missingfiles
	end
	
	local gameConfig = getSubGameConfig(gameId)
	if gameConfig and gameConfig.fremworkId then
		logD("SubGameVersionManager:checkGameFiles() fremworkId = ", gameConfig.fremworkId);
		local result, subGameId, missingfiles = self:checkSubGameFiles(gameConfig.fremworkId)
		if not result then
			return result, subGameId, missingfiles
		end
	end
	return true, gameId, {};
end

return SubGameVersionManager